Vanilla Javascript (ES5, ES6+), React, TypeScript, Nodejs, application architecture design — great knowledge and a lot of experience in these things. Have been working in web-development for 5 years. Know also: Many Web APIs, HTML, CSS, adaptive layouts, BEM methodology, CSS in JS, PHP7 Algorithms and data structures, OOP, FP, design patterns, MVC, MPV, MVVM, Flux (Redux) Statistics and data analysis System/Service/Application architecture design TypeScript, React, Redux, hooks, redux-saga/thunk, Vue2.0 and related technologies Sass, Less, PostCSS, Styled-Components Nodejs (native API, Expressjs, Bull), PHP 7 (Slim) RESTful APIs, queues, microservices Databases (MySQL (mariadb), ClickHouse, PostgreSQL, mongodb), Redis Writing CLI-applications (Nodejs, PHP, bash), Webpack, Gulp, Babel Unit-, integration- and E2E-testing, Jest, Puppeteer, Chai, Mocha, Karma, Cypress CI/CD (github actions, travis CI, circle CI, etc) Unix (Linux, MacOS), Shell-scripting, containerization (Docker, docker-compose), virtualization (VB, vagrant), setting environment, ssh, remote-control/deploy, networking, TCP/IP, OSI English level intermediate Some knowledge of C++, python, neural networks, machine learning